diff --git a/.changeset/olive-clouds-repeat.md b/.changeset/olive-clouds-repeat.md
new file mode 100644
index 0000000..c38820f
--- /dev/null
+++ b/.changeset/olive-clouds-repeat.md
@@ -0,0 +1,9 @@
+---
+"blogwright": patch
+"blogwright-core": patch
+"blogwright-pds": patch
+---
+
+Ship smaller packages. The published tarballs no longer carry `.js.map` sourcemaps (`sourceMap` was set repo-wide in `tsconfig.base.json` and every emitted map was landing in `dist`), and `test-support.ts` — scaffolding imported only by `*.test.ts` — is now excluded from the build configs of `blogwright` and `blogwright-pds` rather than compiled into `dist`. It is still fully typechecked, since the `tsconfig.typecheck.json` files override `exclude` to `[]`.
+
+Unpacked sizes drop by a quarter overall: `blogwright` 540.4 kB → 437.9 kB, `blogwright-core` 205.1 kB → 127.8 kB, `blogwright-pds` 99.9 kB → 58.9 kB, and the three packages together go from 183 files to 121. No runtime code changed.
diff --git a/packages/cli/tsconfig.json b/packages/cli/tsconfig.json
index 2b07fcb..06e8f0a 100644
--- a/packages/cli/tsconfig.json
+++ b/packages/cli/tsconfig.json
@@ -6,5 +6,5 @@
     "types": ["node"]
   },
   "include": ["src/**/*"],
-  "exclude": ["dist", "**/*.test.ts"]
+  "exclude": ["dist", "**/*.test.ts", "src/test-support.ts"]
 }
diff --git a/packages/pds/tsconfig.json b/packages/pds/tsconfig.json
index 2b07fcb..06e8f0a 100644
--- a/packages/pds/tsconfig.json
+++ b/packages/pds/tsconfig.json
@@ -6,5 +6,5 @@
     "types": ["node"]
   },
   "include": ["src/**/*"],
-  "exclude": ["dist", "**/*.test.ts"]
+  "exclude": ["dist", "**/*.test.ts", "src/test-support.ts"]
 }
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 6542e35..67db7c0 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -14,7 +14,6 @@
     "noFallthroughCasesInSwitch": true,
     "exactOptionalPropertyTypes": true,
     "declaration": true,
-    "sourceMap": true,
     "skipLibCheck": true
   }
 }